Acetylene-gas lamp.



' No. 629,2I5. Patented luly I8; |899.'

G. G. SNYDER M. L. WEST. AcEwLElue GAS LAMP.

(Application liked Dec. 22, 1898.) (H0 Hude.)

'illy UNITED STATES GEORGE e. lsNrDEn AND MARCUS L. WEST, OE EASTON, rEN'NsYLvANni. y

.PATENT Erice.

AcETYLENE-GAS LAMP.

SPEC'IFICATIGN forming part of Letters Patent No. 629,215, dated July 18, 1899.

- 'Application nea December 22,1893. semina.. 700,034. on, man.)

To all whom it may concern:

Be it known that we, GEORGE G.i SNYDER and MARCUS L. WEST, eitizens'of the United.

States, residing at Easton, in the county of Northampton and State of Pennsylvania,have invented certain new and useful Improvements in Acetylene-Gas Lamps; and we do declare the following to be a full, clear, and exact description ot' the invention, such as will'enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form apart of this specification.

Our invention relates to acetylene-gas lamps; and its primary object is to provide a lamp of the character named which will be specially adapted for use upon bicycles and like vehicles. t

The novel features of the invention will be fully described hereinafter and defined in the appended claims. A

In the accompanying drawings, Figure lis a central vertical section of a lamp embodying our invention. Fig. 2 is an enlarged detail view of the plug or valve which controls the admission of Water to the lamp.

The referencenumeral 1 designates the water-chamber of the lamp, which may be of any desired shape; but We preferably make the lower end cylindrical and the upper end globular. vWithin the Water-chamber 1 is located the carbid holder or chamber 2. The' Water-chamber 1 is preferably screw-threaded at its upper end to engage the outer threads 3 of avflange 5, depending from the base t of the burner, and the carbid-chamber 2 is also threaded at its upper end to engage the inner threads of the tiange 5. The carbid-chamber is thus suspended within the water-chamber so that the vWater entirely surrounds the gasgenerating chamber, keeping the gas cool, which is a matter of importance.

Within the carbid-chamber is supported a perforated tube @internally threaded at both ot' its ends to receive screw-plugs 7 and 8. The tube is provided with a number of holes 9 to permit of the 110W of Water and gas, and over this tube is arranged a cylinder of wiregauze 10, which is supported removably by the flanged head of the plug Sand bottom of carbid-chamber. The plug 7 at the lower end ofthe tube 6 is provided with a Water-passage 11, which extends centrally through the plug from the lower end or head to a point near the upper end, Where it communicates with a lateral opening 12, which constitutes the Water-discharge opening. y l

Above the carbid-chamber and communi-y cating therewith by a suitable pipe 13 is a burner le, provided With the usual cock 15.

The operation Ot the lamp as thus constructed will be readily understood by those skilled in the art of generating acetylene gas. A quantity of calcium carbid is placed in the chamber 2' before the latter is screwed to place.' The Water-chamber is then vsupplied with Water and screwed to position. The Water feeds through the passages 1l and 12 in the plug 7 and mixes with the carbid to generate the gas. The iioW of Water is controlled automatically by the gas-pressure. When the burner is not being used, the pressure of gas Within the carbid-chamber exceeds'that of the water and prevents the discharge of. Water through the opening l2. 'As soon as the burner is lighted the gas-pressure -is reduced and the Water is permitted to flow.

We have found that supplying the Water from the bottom of thepcarbid-chamber results in a steady and uniformk flow of gas and a consequent steady light.

lt will be'noted that the Water-supply plug is protected by the perforated tube and its Wire-'gauze covering and that all of these parts are readily removable for renewal and cleansing.

Inasmuch as the details of the burner eniployed and the size and shape of the chambers for Water and carbid may be varied to suit special conditions of use, We do not restrict-the invention in these particulars, but reserve the right to make all such changes as may properly fall wit-hin the scope of the following claims.

To claim as our inventionl. In an acetylene-gas generator, the combination with a Water-chamber, of a carbidchamber supported Within the Water-chamber, a tube Within the carbid-chamber, provided With openings, a gauze covering for said tube, a flanged plug at the upper end of the tube for closing the tube and supporting IOO of said tube and supporting the gauze covering in position, and a plug at the lower end of said tube, provided with a vertical opening and a lateral opening, said openings consti- Jouting a Water-passage, substantially as described.

In testimony whereof We affix our signatures in presence of two witnesses.

GEORGE G. SNYDER. MARCUS L. WEST.

Vitnesses:

CHAS. B. BRUNNER, JOHN BRUNNER. 

